Abscess irrigation systems

ABSTRACT

An irrigator system for delivering a volume of fluid from a fluid source to an abscess or wound. The irrigator system includes a fluid source connector for removably connecting to the fluid source, a fluid receiver for receiving the fluid from the fluid source, a fluid delivery nozzle for delivering the fluid to the abscess or wound, and a shield removably positioned around the fluid delivery nozzle to protect the fluid delivery nozzle.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation application of applicationSer. No. 12/851,476 filed on Aug. 5, 2010, which: claims priority toprovisional application 61/325,756 filed on Apr. 19, 2010 andprovisional application 61/231,638 filed on Aug. 5, 2009; and is acontinuation-in-part application of application Ser. No. 11/753,560filed on May 24, 2007 claiming priority to provisional application60/803,109 filed on May 24, 2006; and is a continuation-in-partapplication of application Ser. No. 11/317,758 filed on Dec. 23, 2005;and is a continuation-in-part application of application Ser. No.10/245,241 filed on Sep. 17, 2002; and is a continuation-in-partapplication of application Ser. No. 10/123,966 filed on Apr. 16, 2002;and is a continuation-in-part application of application Ser. No.09/484,666 filed on Jan. 18, 2000; the contents of which areincorporated herein for all intended purposes.

BACKGROUND

This invention relates to providing a medical system assisting moreefficient and safer performance of medical procedures. Moreparticularly, this invention concerns a medical system comprisingapparatus and methods for improved irrigation and lavage. With respectto irrigation problems, when a patient has a wound, it is desirable toirrigate the wound with a solution such as normal saline. Presumably thedilution effect of the irrigation will wash out bacteria and debris andprevent wound contamination, infection, and scarring. The more fluid,the greater the degree of success in prevention. A higher pressure ofirrigation could also help remove bacteria and push out unwanted debris.Unfortunately, when using large volumes or high amounts of pressures,there is a high likelihood of contaminated fluid spreading to unwantedsurfaces, including splashing onto a health care provider or drenchingthe patient. This is undesirable as the risk of spreading of disease isheightened and there are undesirable effects of getting a patient wet(for example, a trauma patient with multiple wounds might be hypothermicfrom a large amount of irrigation fluid evaporating on his body, or achild with a facial laceration might become hypothermic from the excessfluid wetting its clothing during the winter). The excess fluid willalso soil laundry and require increased housekeeping services, usingexisting methods of irrigation. This is also an inconvenience forotherwise healthy patients. They may have to remove their clothing toprevent them from getting soaked. This may be uncomfortable for thepatient in a busy emergency room; and the time necessary for the patientto disrobe would delay a doctor's or nurse's ability to treat suchpatient or other waiting patients more expeditiously. Thesedisadvantages will decrease the incentive for an operator, such as aphysician, to appropriately use optimal large volumes of irrigationfluid; and therefore the risk of wound complications will increase.

Additionally, with respect to abscesses, a typical treatment involvesincision of the abscess and drainage. This invention further relates toabscess irrigation systems.

OBJECTS AND FEATURES OF THE INVENTION

A primary object and feature of the present invention is to providesystems overcoming the above-mentioned problems.

It is a further object and feature of the present invention to provideirrigation systems that may be connected with either to a squeezablewide mouth irrigation fluid bottle or with a syringe providing a singleuseful tool for irrigation of multiple wound types. Another object andfeature of the present invention is to provide a splash shield. Yetanother object and feature of the present invention is to provide asplatter shield.

Another object and feature of the present invention is to provide anirrigation system having a splash shield and a nozzle extending beyondthe splash shield. Another object and feature of the present inventionis to provide such an irrigation system having an adjustable nozzlelength. Another object and feature of the present invention is toprovide an abscess irrigation system having an adjustable shield length.

Another object and feature of the present invention is to provideirrigation systems that are sealed so as not to drip when connected toirrigation fluid sources. Another object and feature of the presentinvention is to provide irrigation systems that are transparent so anirrigation-fluid administrator is able to view the irrigation process.

A further primary object and feature of the present invention is toprovide such a system that is efficient, inexpensive, and handy. Otherobjects and features of this invention will become apparent withreference to the following descriptions.

SUMMARY OF THE INVENTION

In accordance with another preferred embodiment hereof, this inventionprovides an irrigation system comprising: at least one body comprisingat least one first end, at least one second end, and at least one innerhollow having at least one first volume wherein such at least one secondend is open to such at least one inner hollow forming at least oneshield; at least one first irrigation source connector to connect suchat least one body, at such at least one first end, to at least onesqueezable wide mouth irrigation fluid bottle; at least one secondirrigation source connector to connect such at least one body to atleast one syringe, such at least one second irrigation source connectorcomprising at least one tubular member projecting in a direction towardsuch at least one first end; at least one irrigation fluid port todispense fluid from such at least one squeezable wide mouth irrigationfluid bottle or such at least one syringe. Moreover, it provides such anirrigation system wherein such at least one second irrigation sourceconnector comprises a tapered interior portion structured and arrangedto make a luer-type connection with at least one irrigation source.Additionally, it provides such an irrigation system wherein such atleast one second irrigation source connector is structured and arrangedto fit at least one syringe having a slip fit luer-type connection.Also, it provides such an irrigation system wherein such at least onesecond irrigation source connector is structured and arranged to fit atleast one syringe having a locking luer-type connection. In addition, itprovides such an irrigation system wherein such at least one secondirrigation source connector is structured and arranged to fit at leastone syringe having a slip fit luer-type connection and at least onesyringe having a locking luer-type connection. And, it provides such anirrigation system wherein such at least one at least one irrigationfluid port projects into such at least one inner hollow. Further, itprovides such an apparatus wherein such at least one first irrigationsource connector comprises at least one washer structured and arrangedto form a seal when such at least one first irrigation source connectoris connected to at least one squeezable wide mouth irrigation fluidbottle. Even further, it provides such an irrigation system wherein suchat least one shield further comprises at least one aperture. Moreover,it provides such an irrigation system wherein such at least one shieldis transparent. Additionally, it provides such an irrigation systemwherein such at least one shield further comprises at least one voidhaving a height substantially greater than its width. Also, it providessuch an irrigation system wherein such at least one shield furthercomprises at least one void sized to permit insertion and manipulationof a syringe needle. In addition, it provides such an irrigation systemfurther comprising at least one removable extension nozzle which, whenattached to such at least one irrigation fluid port, extends beyond suchat least one second end. And, it provides such an irrigation systemwherein such at least one removable extension nozzle is flexible.Further, it provides such an irrigation system wherein such at least oneremovable extension nozzle is cuttable.

In accordance with another preferred embodiment hereof, this inventionprovides an irrigation system comprising: at least one body comprisingat least one first end, at least one second end, and at least one innerhollow having at least one first volume wherein such at least one secondend is open to such at least one inner hollow forming at least oneshield; at least one dividing structure separating such at least onefirst end from such at least one second end; wherein such at least onedividing structure comprises at least one aperture; at least oneaperture-insertable member comprising at least one nozzle portion;wherein, when such at least one at least one aperture-insertable memberis inserted into such at least one aperture, such at least one nozzleportion projects into such at least one inner hollow. Even further, itprovides such an irrigation system wherein such at least oneaperture-insertable member further comprises at least one syringeconnectable portion. Moreover, it provides such an irrigation systemwherein such at least one body further comprises at least one squeezablewide mouth irrigation fluid bottle connector to connect such at leastone body, at such at least one first end, to at least one squeezablewide mouth irrigation fluid bottle. Additionally, it provides such anirrigation system wherein such at least one apertureinsertable membercomprises at least one larger-than-aperture portion to secure such atleast one aperture-insertable member in such at least one aperture.Also, it provides such an irrigation system wherein such at least onesyringe connectable portion comprises at least one tapered interiorportion structured and arranged to make at least one luer-typeconnection with at least one syringe. In addition, it provides such anirrigation system wherein such at least one syringe connectable portionis structured and arranged to fit at least one syringe having a slip fitluer-type connection. And, it provides such an irrigation system whereinsuch at least one syringe connectable portion is structured and arrangedto fit at least one syringe having a locking luer-type connection.Further, it provides such an irrigation system wherein such at least onesyringe connectable portion is structured and arranged to fit at leastone syringe having a slip fit luer-type connection and is also isstructured and arranged to fit at least one syringe having a lockingluer-type connection. Even further, it provides such an irrigationsystem wherein such at least one nozzle portion, when such at least oneaperture-insertable member is inserted into such at least one aperture,extends beyond such at least one second end. Moreover, it provides suchan irrigation system wherein such at least one nozzle portion isflexible. Additionally, it provides such an irrigation system whereinsuch at least one nozzle portion is cuttable. Also, it provides such anirrigation system wherein such at least one shield comprises at leastone aperture. In addition, it provides such an irrigation system whereinsuch at least one dividing structure is positioned closer to such atleast one second end than to such at least one first end. And, itprovides such an irrigation system wherein such at least one squeezablewide mouth irrigation fluid bottle connector comprises at least onewasher structured and arranged to form a seal when such at least onesqueezable wide mouth irrigation fluid bottle connector is connected toat least one squeezable wide mouth irrigation fluid bottle.

In accordance with another preferred embodiment hereof, this inventionprovides an irrigation system comprising: at least one body comprisingat least one first end, at least one first connector to connect such atleast one body, at such at least one first end, to at least onesqueezable wide mouth irrigation fluid bottle, and at least one nozzleprojecting in a direction away from such at least one first end; atleast one shield connector; at least one shield comprising at least oneinner hollow, such at least one shield attachable to such at least oneshield connector; wherein when such at least one shield is attached tosuch at least one shield connector, such at least one nozzle extendsinto such at least one shield. Further, it provides such an irrigationsystem wherein such at least one shield connector is sized to permitposition selection of such at least one shield. Even further, itprovides such an irrigation system wherein such at least one nozzleextends beyond such at least one shield connector. Moreover, it providessuch an irrigation system wherein such at least one nozzle extendsbeyond such at least one shield connector and such at least one shieldwhen such at least one shield is attached to such at least one shieldconnector. Additionally, it provides such an irrigation system whereinsuch at least one nozzle does not extend beyond such at least one shieldwhen such at least one shield is attached to such at least one shieldconnector.

In accordance with another preferred embodiment hereof, this inventionprovides an irrigation system comprising: at least one syringeconnector; at least one fluid output port in fluid communication withsuch at least one syringe connector; at least one shield having adome-shaped configuration comprising at least one open end, at least oneinner surface, and at least one outer surface, such at least one shieldsurrounding such at least one fluid output port; wherein such at leastone fluid output port extends beyond such at least one open end of suchat least one shield. Also, it provides such an irrigation system furthercomprising at least one tube situated within such at least one at leastone fluid port used to lengthen the effective length of such at leastone fluid output port. In addition, it provides such an irrigationsystem wherein such at least one tube is flexible. And, it provides suchan irrigation system wherein such at least one tube is cuttable.Further, it provides such an irrigation system wherein such at least onesyringe connector comprises at least one female luer taper. Evenfurther, it provides such an irrigation system wherein such at least oneshield is transparent. Even further, it provides such an irrigationsystem further comprising at least one bottle connector. Even further,it provides such an irrigation system further comprising at least onecap structure surrounding such at least one shield, such at least onecap structure structured and arranged to connect such irrigation systemto at least one bottle.

In accordance with another preferred embodiment hereof, this inventionprovides a wound irrigation system comprising: at least one transparentand rigid hollow cup-shaped shield having at least one open lower endand at least one closed upper end and at least one inner surface and atleast one outer surface; at least one conduit extending through such atleast one outer surface and into such at least one transparent and rigidhollow cup-shaped shield in such at least one closed upper end, such atleast one conduit having at least one top end configured to accept atleast one irrigation source and generally narrowing as extendingdownwardly through such at least one inner surface to at least onebottom end; and at least one aperture, substantially adjacent such atleast one conduit, extending through such at least one closed upper endof such at least one transparent and rigid hollow cup-shaped shield.Even further, it provides such a wound irrigation system wherein such atleast one irrigation source connects by at least one luer-typeconnection. Even further, it provides such a wound irrigation systemwherein such at least one irrigation source comprises at least onesyringe. Even further, it provides such a wound irrigation systemwherein such at least one irrigation source comprises at least onesyringe.

In accordance with another preferred embodiment hereof, this inventionprovides a method relating to preventing spraying or splatter of fluidfrom an injection site comprising the steps of: placing at least oneshield having at least one open end and at least one inner hollow overat least one portion of tissue to be injected; injecting such at leastone portion of tissue to be injected; and shielding a user from anyspraying or splattering resulting from the injection using such at leastone shield. Even further, it provides such a method wherein such atleast one shield comprises at least one aperture suitable to insert andmanipulate at least one injecting device.

In accordance with another preferred embodiment hereof, this inventionprovides each and every novel feature, element, combination, step and/ormethod disclosed or suggested herein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a preferred embodiment of a splashshield system according to the present invention, and showing use withan irrigation squeeze bottle.

FIG. 2 is an exploded perspective view of the embodiment of FIG. 1, andfurther showing (in dotted lines) the structure of another preferredalternate embodiment using vacuum evacuation of irrigation fluid througha port situated near the plane of irrigation.

FIG. 3 is a sectional view of the embodiment of FIG. 1, illustratingdetails of preferred structure.

FIG. 4 is a sectional view of another preferred embodiment of a splashshield system according to the present invention.

FIG. 5 is an enlarged view of the embodiment of FIG. 4 attached to abottle (which is shown in dotted lines) with a wide inner diameterbottle finish.

FIG. 6 is an enlarged view of the embodiment of FIG. 4 attached to abottle (which is shown in dotted lines) with an inner diameter bottlefinish narrower than the bottle shown in FIG. 5.

FIG. 7 shows a perspective view showing an alternate preferredembodiment of a splash shield system with multiple irrigation fluiddischarge ports.

FIG. 8A shows a sectional view through the section 8A-8A of FIG. 7.

FIG. 8B shows a sectional view, magnified for clarity, of the section ofFIG. 8A.

FIG. 9 is a perspective view illustrating the use of the splash shieldof FIG. 1, inverted for use with a syringe.

FIG. 10 is a perspective view illustrating the use of the splash shieldof FIG. 9 using a syringe with connecting tubing.

FIG. 11 is a perspective view illustrating the use of the splash shieldof FIG. 1 using a syringe with connecting tubing and an adapter.

FIG. 12 is a sectional view of the adapter connection area of theembodiment of FIG. 11 illustrating the area detail.

FIG. 13 is a sectional view of another preferred embodiment of a splashshield according to the present invention, showing a puncturing meansfor breaking the seal on a source of irrigation fluid.

FIG. 14 is a sectional view of another preferred embodiment of a splashshield according to the present invention, showing a puncturing meanswith integral fluid transport means.

FIG. 15 is a perspective view of another preferred embodiment of asplash shield according to the present invention, which splash shield isshown fitted into the neck of a bottle of the type containing irrigationfluid.

FIG. 16 is a perspective view of the embodiment of FIG. 15 showndetached from the illustrated bottle.

FIG. 17 is a sectional view through the center of the embodiment of FIG.15 showing structural details and showing its fit in the illustratedbottle (which is in dotted lines).

FIG. 18 is a side view of a splash shield with an end cap attached onthe top end and an end cap detached from the bottom end of splashshield.

FIG. 19 is an exploded perspective view of yet another preferredembodiment of the splash shield of the present invention, showing theend of an irrigation bottle, a bottle adapter to control the irrigationstream, and a tubular splash shield element.

FIG. 20 is a sectional view of the embodiment of FIG. 19 illustratingthe details with the splash shield connected to the bottle (shown indotted lines).

FIG. 21 is a perspective view of a preferred embodiment of a combinedsplash shield and irrigation squeeze tube according to the presentinvention.

FIG. 22 is a partial perspective view of the embodiment of FIG. 21,partially cut away to show its use with cap removed.

FIG. 23 is a front view illustrating yet another preferred embodiment ofa splash shield according to the present invention, showing a spikeconnector attached to a squeeze bag and also fitted into a cylindricalsplash shield element.

FIG. 24 is a perspective view of the embodiment of FIG. 23, showing thespike connector separated from the cylindrical splash shield element.

FIG. 25 is a partial sectional view showing the connection details withthe spike connector attached to the cylindrical splash shield element.

FIG. 26 is an exploded perspective view of yet another preferredembodiment of the splash shield of the present invention, showing asyringe-type end, a syringe adapter to control the irrigation stream,and a tubular splash shield element.

FIG. 27 is a sectional view of the embodiment of FIG. 26 illustratingthe details with the parts connected.

FIG. 28 is a perspective view of yet another preferred embodiment of asplash shield according to the present invention shown attached to anIV-type squeeze bag by way of the IV spike connector of this embodiment.

FIG. 29 is an enlarged (over FIG. 28) perspective view of the embodimentof FIG. 28.

FIG. 30 is sectional side view of the embodiment of FIG. 28 illustratingthe structural details thereof.

FIG. 31 is a bottom view of the embodiment of FIG. 28.

FIG. 32 is a side elevation view of a preferred embodiment of the splashshield medical device of the present invention.

FIG. 33 is a top plan view of the embodiment of FIG. 32.

FIG. 34 is a perspective view of the embodiment of FIG. 32 showing it ina restrained position.

FIG. 35 is a side sectional view of the embodiment of FIG. 32,illustrating its operation.

FIG. 36 is a side sectional view of the embodiment of FIG. 32, furtherillustrating operation with relief closure.

FIG. 37 is a perspective view of a preferred alternate usage of thesplash shield of the type of FIG. 32, further illustrating siphoning ofirrigation fluid from a fluid container.

FIG. 38 is a side sectional view of an alternate preferred embodiment ofthe splash shield of the present invention, illustrating its operationincorporating an inlet swivel structure.

FIG. 39 is a partial expanded sectional view of the embodiment of FIG.38, illustrating swivel detail.

FIG. 40 is an exploded perspective view further illustrating the swiveldetail of the embodiment of FIG. 38.

FIG. 41 is a perspective view of yet another preferred embodiment of asplash shield according to the present invention.

FIG. 42 is a side view of the embodiment of FIG. 41, shown attached tothe irrigation syringe.

FIG. 43 is a front view of the embodiment of FIG. 41, with theirrigation syringe in dotted lines.

FIG. 44 is a side sectional view of the embodiment of FIG. 41 showingthe structural details and fluid flow directions

FIG. 45 is a top view of the embodiment of FIG. 41.

FIG. 46 is a partial sectional view through the section 46-46 of FIG.42.

FIG. 47 is a bottom view of the embodiment of FIG. 41.

FIG. 48 is a perspective view of another preferred embodiment of asplash shield according to the present invention.

FIG. 49 is a top view of the embodiment of FIG. 48.

FIG. 50 is a sectional view through the section 50-50 of FIG. 49.

FIG. 51 shows a side view illustrating a wound irrigation systemaccording to a preferred embodiment of the present invention.

FIG. 52 shows a side view of the wound irrigation system of FIG. 51illustrating multiple syringe-type connection.

FIG. 53 shows a side view of the wound irrigation system of FIG. 51,illustrating attachment to an irrigation fluid bottle.

FIG. 54 shows a side view of a wound irrigation system, illustrating atleast one syringe needle aperture, according to an alternately preferredembodiment of the present invention.

FIG. 55 shows a side view of the wound irrigation system of FIG. 54,illustrating syringe needle access.

FIG. 56 shows a side view of an abscess irrigation system, illustratinga nozzle extension, according to an alternately preferred embodiment ofthe present invention.

FIG. 57 shows a side view of the abscess irrigation system of FIG. 56,illustrating use of the nozzle extension.

FIG. 58 shows a side view of the abscess irrigation system of FIG. 56,illustrating attachment of the nozzle extension.

FIG. 59 shows a side view of the abscess irrigation system of FIG. 58,illustrating length adjustment of the nozzle extension.

FIG. 60 shows a side view of an abscess irrigation system, illustratingan insert nozzle, according to an alternately preferred embodiment ofthe present invention.

FIG. 61 shows a side view of the abscess irrigation system of FIG. 60,illustrating attachment of a syringe to the insert nozzle.

FIG. 62 shows a side view of an irrigation system, illustrating at leastone detachable shield, according to an alternately preferred embodimentof the present invention.

FIG. 63 shows a side view of an irrigation system, illustrating at leastone adjustable-height shield, according to an alternately preferredembodiment of the present invention.

FIG. 64 shows a side view of an irrigation system, illustrating at leastone multiple-type connector, according to an alternately preferredembodiment of the present invention.

FIG. 65 shows a bottom view of the irrigation system of FIG. 64.

FIG. 66 shows the sectional view 66-66 of FIG. 65.

FIG. 67 shows a side view of the irrigation system of FIG. 66,illustrating attachment to at least one fluid bottle.

FIG. 68 shows a perspective view of an abscess irrigator according to analternately preferred embodiment of the present invention.

FIG. 69 shows a bottom view of the abscess irrigation system of FIG. 68.

FIG. 70 shows a side view of the abscess irrigation system of FIG. 68.

FIG. 71 shows a side view of the abscess irrigation system of FIG. 70,illustrating at least one flexible nozzle extension.

FIG. 72 shows a side view of the abscess irrigation system of FIG. 71,illustrating use with at least one abscess cavity.

FIG. 73 shows a side view, illustrating an alternately preferredluer-lock attacher, according to an alternately preferred embodiment ofthe present invention.

DETAILED DESCRIPTION OF THE BEST MODES AND PREFERRED EMBODIMENTS OF THEINVENTION

FIG. 1 is a perspective view of a preferred embodiment of a splashshield system according to the present invention, showing use of splashshield 64 attached to wide mouth irrigation squeeze bottle 59.Preferably, wide mouth irrigation squeeze bottle 59 comprises a standardhigh volume plastic squeeze bottle of sterile fluid (sometimes alsoreferred to herein as irrigation fluid), as shown. Preferably, widemouth irrigation squeeze bottle 59 comprises a volume of at least about250 cc. Preferably, wide mouth irrigation squeeze bottle 59 comprises avolume less than about 1750 cc. Preferably, wide mouth irrigationsqueeze bottle 59 comprises bottle neck finish portion 30, as shown.Preferably, bottle neck finish portion 30 comprises an inner diameterbetween about ¾ inches and about 1½ inches, most preferably betweenabout ⅘ inches and about 1¼ inches. Preferably, bottle neck finishportion 30 comprises an outer diameter between about ⅘ inches and about1¾ inches. Preferably, wide mouth irrigation squeeze bottle 59 comprisesa standard wide mouth wound irrigation squeeze bottle, such as, forexample, wide mouth wound irrigation squeeze bottles manufactured and/ordistributed by Baxter Healthcare Corporation (or Baxter International,inc.) of Deerfield, Ill. (sometimes referred to herein as BAXTER),Abbott Laboratories of Abbott Park, Ill. (and related company HospiraWorldwide, Inc., of Lake Forest, Ill.) (sometimes referred to herein asABBOTT), or B. Braun Medical, Inc. of Allentown, Pa. (and relatedcompany McGaw, Inc., of Irvine, Calif.)(sometimes referred to herein asMCGAW). Preferably, when wide mouth irrigation squeeze bottle 59 issqueezed, fluid 56 is squirted onto flesh 53 (also referred to herein asbody surface) of the patient, as shown. It is preferred that a widemouth irrigation fluid bottle is used to reduce time filling up a basinor bath by pouring the contents of the irrigation fluid bottle into suchbasin or bath and then filling up a syringe from such basin or bath.Even if a syringe that has dimensions that may allow a user to insertthe syringe into a wide mouth bottle is used, the syringe volumecapacity is such that it will be time consuming and cumbersome to filland refill the syringe to adequately irrigate the wound. Syringe shieldscannot be inserted into a wide mouth bottle. To use a syringe shieldwith a wide mouth irrigation fluid bottle, a user must disconnect andreconnect the shield to the syringe each time the user needs to refillthe syringe with irrigation fluid. Again, this is time consuming,cumbersome, and inefficient. Using the splash cap system of the presentinvention overcomes these problems.

FIG. 2 shows a preferred embodiment of the present invention with widemouth irrigation squeeze bottle 59 detached from splash shield 64. FIG.3 is a sectional view of the embodiment of FIG. 1, illustrating detailsof a preferred structure. Preferably, splash shield 64 is transparent,as shown. Preferably, splash shield 64 comprises first end 31 and secondend 32, as shown. Preferably, partition 81 divides first end 31 fromsecond end 32, as shown. Preferably first end 31 comprisesirrigation-source connector 33, as shown. Preferably, irrigation-sourceconnector 33 comprises an inner diameter between about ⅘ inches andabout 1¾ inches, most preferably between about 1.4 inches and about 1.6inches, most preferably between about 1.3 inches and 1.6. Based on thetype of connector desired, one may prefer an inner thread-to-threaddiameter of about 1.3 inches over about 1.4 inches in cases where athicker thread is desired. Preferably splash shield 64, includingirrigation-source connector 33, partition 81, and inner hollow 83,consist of one monolithic piece. Preferably splash shield 64 is sterile.

Preferably, irrigation-source connector 33 comprises threads 69, asshown. Preferably, threads 69 comprise helical threads, as shown.Preferably second end 32 comprises inner hollow 83 as shown. Preferably,bottle neck finish portion 30 of wide mouth irrigation squeeze bottle 59comprises threads 72, as shown. Preferably, threads 72 comprise malethreads, as shown. Preferably, threads 72 comprise helical threads, asshown (embodying herein a bottle structured and arranged to containirrigation fluid, such bottle comprising, a neck, wherein such neckcomprises external threads structured and arranged to connect with abottle cap) structured and arranged to couple with threads 69 (suchthreads embodying herein threads structured and arranged to provide athreaded connection with the source of irrigation fluid; and furtherembodying herein wherein such threads comprise internal threadsstructured and arranged to connect with external threads on a neck of airrigation fluid bottle; and further embodying wherein suchirrigation-source connecter comprises threads structured and arranged toprovide a threaded connection; and further embodying herein an adapterstructured and arranged to allow a connection between such body and suchsource of irrigation fluid) within inner hollow 82 of splash shield 64to form a tight connection. Preferably, irrigation-source connector 33is structured and arranged to connect to standard wide mouth woundirrigation squeeze bottles, such as, for example, those manufactured byBAXTER, ABBOT, or MCGAW. Upon reading the teachings of thisspecification, those with ordinary skill in the art will now understandthat, under appropriate circumstances, considering such issues as costof manufacture, compatibility, market demand, etc., other connectionarrangements, such as, for example, non-helical threads, female threads,luer-type connections, non-threaded connections, snap on connections,etc., may suffice.

Preferably, partition 81 comprises orifice nozzle 58 for directing astream of fluid from the irrigation source (such as, for example, widemouth irrigation squeeze bottle 59) toward flesh 53 (embodying herein abody, having a first end and a second end wherein such first end is opento a first hollow portion of such body and such second end is open to asecond hollow portion of such body; an irrigation-source connecterstructured and arranged to connect such body, adjacent the first end, toa source of irrigation fluid; a partition, between such first hollowportion and such second hollow portion; wherein such partition comprisesat least one nozzle structured and arranged to direct at least onestream of the irrigation fluid towards the wound; wherein such splashshield system is structured and arranged in such manner as to prolectthe user from contact with the irrigation fluid; and further embodyingherein wherein such adapter comprises a nozzle structured and arrangedto direct a stream of the irrigation fluid towards the wound).

Preferably, nozzle 58 protrudes from partition 81, as shown. Preferably,nozzle 58 protrudes from partition 81 a distance between about 0.005inches to about 1 inch, as shown. Preferably nozzle 58 comprises atleast one passageway 35 with at least one cross-sectional area, whichdecreases from at least one inlet port 36 of said at least one nozzle toat least one outlet port 37 of said at least one nozzle, forming atleast one venturi passageway 35, as shown. Preferably, the length ofpassageway 35 is between about 0.005 inches to about 1 inch.

Preferably, splash shield 64 comprises a cylindrical exterior wallportion 34 (see FIG. 2), as shown, wherein “cylindrical”, as usedthroughout this specification, is defined in the broad mathematicalsense as a surface traced by a straight line moving parallel to a fixedstraight line and intersecting a fixed planar closed curve. Preferablycylindrical exterior wall portion 34 is substantially round. Preferablyinner hollow 83 comprises a substantially round cylindrical portion, asshown (embodying herein a body having a first end and a second end, anda cylindrical exterior wall and irrigation-source connector structuredand arranged to connect such body, at such first end, to a source ofirrigation fluid; wherein such body comprises at least one inner hollow;wherein such second end, is open to such at least one inner hollow;wherein such splash shield system is structured and arranged in suchmanner as to protect the user from contact with the irrigation fluid;and further embodying herein wherein such cylindrical exterior wall issubstantially round; and such at least one inner hollow comprises asubstantially round cylinder). Upon reading the teachings of thisspecification, those with ordinary skill in the art will now understandthat, under appropriate circumstances, considering such issues asintended use, user preference, cost of manufacture, etc., other splashshield shape arrangements, such as, for example, non-cylindricalportions, conical shaped portions, asymmetrical shaped portions, etc.,may suffice.

According to the preferred embodiment shown in FIG. 1, there ispreferably a single nozzle for irrigating flesh 53 with fluid 56, asshown. According to the preferred embodiment shown in FIG. 2, partition81 preferably comprises at least one additional hole 201 to facilitateirrigating flesh 53 with multiple streams of fluid 56 (wherein suchpartition further comprises, at least one hole through such partition(in addition to such nozzle)). Thus, when bottle 59 is attached andsqueezed, fluid 56 is forced into and through orifice nozzle 58 (andalso, through hole 201), as shown.

FIG. 2 also shows (in dotted lines) the structure of another preferredalternate embodiment using vacuum evacuation of irrigation fluid byvacuum line 10 through a port 140 situated near (as shown) the plane ofirrigation (embodying herein an output opening structured and arrangedto allow suctioning excess irrigation fluid from within such body).

Using the invention with a standard wide mouth irrigation bottle with aport approximately the size of a luer tip opening, one can generate apressure similar to that of the outer diameter of an 18-gauge needle.Though this may seem counter-intuitive to some, this larger luer sizedopening has a diameter approximately 4 times the size of the smaller18-gauge sized opening, and it is capable of generating a similar peakirrigation stream pressure. Although fluid discharge ports larger than1.5 mm can provide advantages, fluid discharge ports larger than 4 mmmay have disadvantages. Beyond a certain point the diameter of the fluiddischarge port may become too large. The diameter of the port may becomeso large that fluid from the stream is wasted. For example, a stream ofa diameter of more than 4 mm would waste a lot of fluid irrigating amore narrow laceration of 1 mm. Beyond a certain width a port that istoo wide might not be able to generate the desired irrigation pressuresusing a standard manual squeeze bottle. 4 mm is the approximate size ofcatheter tip piston syringe openings. Catheter tip plunger syringes havebeen shown to generate a pressure of at least 4 psi.

In the medical literature there is much debate over the ideal pressureto irrigate a wound. For eye wounds it is desirable to limit thepressure, but increase the volume of fluid. For wounds treated in thehospital and clinic setting, some authors recommend at least 4 psi andothers recommend at least 7 psi. Some recommend no more than 8 psi ofpressure and other recommend no more than 15 psi of pressure. Typicallyin the operating room higher pressure devices are used. In chronic woundcare settings frequently low pressures are used. The ideal medicalirrigation device or method is one that is simple, inexpensive and canachieve a variety of different pressure ranges and allows the user tochoose the pressure or range which they judge to be optimal.

When using devices with that generate higher pressured streams it isdesirable to have an adequately sealed system to permit more efficientgeneration of pressures without loss of pressure through leaks. Leakagewould require more energy to be used to generate a higher pressure inthe system and therefore of the irrigation stream. In the case ofmanually squeezed irrigation bottle, leakage of the system may make somepressures unattainable by manual pressure that otherwise would have beenattainable.

Another problem with leakage of manually squeezed irrigation bottlesystem is that the leaks may cause irrigation fluid to drain or sprayout around the collar of the wide mouth irrigation bottle connector.Along with reducing the pressure achievable in the system, such aleakage may cause a messy situation. Fluid may drip on the outside ofthe irrigation shield. If the shield is transparent, the leaked fluiddrops or streaks may obstruct the view through the transparent splashshield.

It is therefore desirable to have a shielded irrigation device that hasa liquid tight seal on at least one irrigation bottle finish.

FIG. 4 is a sectional view through splash shield 400. Preferably, splashshield 400 comprises body 401, as shown. Preferably, body 401 consistsessentially of one unitary, monolithic piece, as shown. Preferably, body401 comprises transparent plastic. Preferably, transparency providesminimal distortion and maximum clarity so that the wound can be easilyviewed through body 401 (allowing the user to accurately aim theirrigation stream). Preferably, the irrigation of the wound can beeasily viewed from the side of transparent body 401 or from above body401. Maximum clarity can generally be achieved more effectively withrigid material. Preferably, body 401 comprises first end 410 and secondend 412, as shown. Preferably, first end 410 comprises irrigation sourceconnector 411 (at least embodying herein at least one squeezable widemouth irrigation fluid bottle connector structured and arranged toconnect such at least one body), as shown. Splash shield 400 caps a widemouth irrigation fluid bottle when connected to a wide mouth irrigationfluid bottle. Preferably, second end 412 comprises inner hollow 404, asshown. Preferably, second end 412 comprises at least one transparentportion. Preferably, first end 410 is in fluid communication with secondend 412 via fluid discharge port 418 (also sometimes referred to hereinas an irrigation fluid port), as shown. Preferably, fluid discharge port418 comprises nozzle 406. Preferably, nozzle 406 protrudes into innerhollow 404, as shown. Preferably inner hollow 404 is structured andarranged to assist in containing fluid which is discharged from fluiddischarge port 418 into inner hollow 404, as shown. Preferably, innerhollow 404 may temporarily contain greater than 25 ml of irrigationfluid when second end 402 is placed adjacent the flesh of a patient.Since a wide mouth irrigation fluid bottle dispenses a larger volume ofirrigation fluid than, for example, a 20 cc handheld syringe, a largershield capable of temporarily containing such volume of greater than 25ml is preferred to properly irrigate the wound of a patient. It isdesired that the volume of the shield be sufficient to contain a volume,temporarily, when the splash shield is adjacent the flesh or bodysurface of a patient so that a large volume of irrigation fluid from alarge area fluid port may flow to irrigate a wound. A large fluid portpreferably has a large area for discharge of fluid. For purposes of thisdisclosure, a large area fluid port is not greater than a port having adiameter of 1 mm. Preferably, such fluid port has a diameter of 1.5 mm.A further advantage of the larger volume inner hollow is that it permitsa user to direct irrigation fluid to a wound. When using 20 cc syringeto irrigate a wound, constant refilling is necessary to apply largevolumes. This is inefficient when time may be of the essence inemergency care situations. If the inner hollow volume is too small,insufficient irrigation fluid will reach the wound and will diminish theprotective effect of the splash shield because, for example, the lowvolume splash shield will need to be raised to accommodate furtherirrigation fluid. The height of inner hollow 404 may also be importantin providing a user with a reasonable and comfortable way to lookthrough the shield of splash cap 400 when the splash cap 400 isconnected to a wide mouth irrigation squeeze bottle, inverted, and usedto irrigate a wound. Preferably, inner hollow 404 helps protect a userfrom fluid that is discharged from fluid discharge port 418 andsplashing fluid that results when the fluid impacts the wound(contaminated irrigation fluid), etc. Preferably, fluid discharge port418 has a diameter 408 of at least 1.5 mm. Preferably, fluid dischargeport 418 has a diameter 408 of at least 2 mm. Preferably, fluiddischarge port 418 has a diameter 408 of at least 2.5 mm.

Preferably, irrigation source connector 411 is structured and arrangedto accommodate a range of bottle finish sizes. Comparing FIG. 5 and FIG.6, it can be seen how splash shield 400 can accommodate attaching towide mouth wound irrigation squeeze bottles with different sized bottlefinish portions. FIG. 5 shows splash shield 400 connected to bottle 500with a relatively wider diameter bottle finish inner diameter 504, asshown. FIG. 6 shows splash shield 400 connected to bottle 500B with arelatively narrower diameter bottle finish inner diameter 504B, asshown.

Referring to FIG. 5, preferably, irrigation source connector 411comprises threads 402, as shown. Preferably, threads 402 are structuredand arranged to provide a threaded connection with threads 506 on thebottle finish 502 of a wide mouth wound irrigation squeeze bottle 500.Preferably, threads 402 have standard thread dimensions. Preferably,threads 402 comprise 1½-6 UNC thread dimension. Preferably, threads 402comprise 1½-6 UNC coarse thread dimension. Preferably, threads 402comprise helical threads with at least 2 turns, more preferably at least2.5 turns. Less than 2 turns increases the likelihood of cross threadingproblems, and is therefore less preferable. More than 2.5 turns helpsprevent cross threading and improves universal sealing to a variety ofdifferent sized bottle finishes (such as the different dimensions ofbottle finishes for standard wound irrigation squeeze bottlesmanufactured by BAXTER, ABBOT, and MCGAW.

Preferably, irrigation source connector 411 is structured and arrangedto provide a liquid-tight seal so that when an irrigation source (e.g. awide mouth wound irrigation squeeze bottle) is attached to theirrigation source connector 411, fluid can only escape through the fluiddischarge port 418 (and fluid cannot escape through the connection,threads, etc.). Preferably, irrigation source connector 411 comprisesridge 416 (at least embodying herein at least one washer structured andarranged to form a seal when such at least one squeezable wide mouthirrigation fluid bottle connector is connected to at least onesqueezable wide mouth irrigation fluid bottle), as shown. Preferably,ridge 416 comprises ridge outer surface 414, as shown. Preferably, ridgeouter surface 414 is structured and arranged to seal against the innerdiameter of a bottle neck finish portion. Preferably, ridge 416 isshaped with an external taper (slant/slope), as shown. Ridge 416 permitsa liquid-tight seal without relying on resilient material so that splashshield 400 can be manufactured as one monolithic piece of rigid materialto reduce cost. Preferably, liquid-tight seal 510 is achieved by contactbetween the inner diameter of the bottle finish and outer surface ofridge 416, as shown. Preferably, seal 510 is achieved by screwing splashshield 400 onto wide mouth wound irrigation squeeze bottle 500 (byengagement between threads 506 and threads 402) until the end of bottlefinish 502 seats tightly on ridge outer surface 414 of ridge 416, asshown. Preferably, irrigation source connector 411 is structured andarranged so that seal 510 (and seal 510B, etc., for other size bottlefinishes) remains liquid-tight (preventing leaking of fluid) atpressures of 4 pounds per square inch, preferably remaining liquid-tightat pressures of 7 pounds per square inch.

Comparing FIG. 5 and FIG. 6, it can be seen that for relatively widerdiameter bottle finish inner diameter 504 (see FIG. 5), seal 510 occursnearer the base of ridge 416 (where the ridge outer surface diameter islarger compared to the top). Whereas, for relatively narrower diameterbottle finish inner diameter 504B (see FIG. 6), seal 510B occurs nearerthe top/apex of ridge 416 (where the ridge outer surface diameter issmaller compared to the base). Preferably, ridge outer surface 414 has arange of ridge outer surface diameters from greater than 1.2 inches nearthe base, to less than 1.14 inches near the top/apex of ridge 416, asshown. Preferably, irrigation source connector 411 is structured andarranged to accommodate and provide a liquid-tight seal for a range ofbottle finish sizes. Preferably, irrigation source connector 411 isstructured and arranged to universally fit and provide a liquid-tightseal for the different bottle finish dimensions of standard woundirrigation bottles manufactured by BAXTER, ABBOT, and MCGAW. It is notedthat BAXTER standard wound irrigation bottles typically have an innerdiameter of about 1.14 inches, while ABBOT standard wound irrigationbottles typically have an inner diameter of about 1.17 inches, and MCGAWstandard wound irrigation bottles typically have an inner diameter ofabout 1.2 inches. By being able to universally fit any of the top threemost popular manufacturers mentioned above, splash shield 400 is moreconvenient and efficient than a product that would only fit one specificbottle size. Further, splash shield 400 preferably fits to standardsqueezable wide mouth irrigation fluid pour bottles which are designedto have an inner lip in addition to their wide mouth diameter to avoidirrigation fluid dripping while pouring such standard bottles.

According to an alternate preferred embodiment of the present inventionridge 416 comprises resilient material. According to another alternatepreferred embodiment of the present invention ridge 416 can besupplemented and/or replaced by a washer, preferably made of resilientmaterial, in order to achieve a liquid tight seal.

FIG. 7 shows a perspective view showing an alternate preferredembodiment of a splash shield system with multiple fluid discharge ports360. FIG. 8A and FIG. 8B show a sectional view and blowup detailsectional view, respectively, of the embodiment of FIG. 7. Splash shieldsystem preferably comprises splash shield 350. While splash shield 350preferably comprises many elements of splash shield 400, splash shield350 preferably further comprises multiple discharge ports 360. Dischargeports 360 preferably prevent over pressuring fluid discharge throughnozzle 406.

FIG. 9 is a perspective view illustrating the use of the splash shield64 of FIG. 1 inverted for use with a syringe 55. In this embodiment, theopen unthreaded end of splash shield 64 receives a syringe 55 whosenozzle fits over the now protruding (from the former underside ofpartition 81) part of orifice nozzle 58, as shown. Thus, when syringe 55discharges its fluid, the threaded portion 68 of splash shield 64 nowacts as a splash shield. Similarly, FIG. 10 is a perspective viewillustrating the use of the splash shield 64 “upside down” arrangementof FIG. 9 using a syringe 55 with connecting tubing 73, which tubing 73is in this case connected over the protruding orifice nozzle 58.

Those with ordinary skill in the art, upon reading this specification(e.g., FIGS. 2, 7, and 9 and associated comments), will understand thatone of applicant's preferred embodiments combines a syringe with anaperture useful, for example, in venting excess gases (typically air)when the combined syringe and splash shield are filled with irrigationfluid from an irrigation fluid source. Such preferred embodiment(s)herein embody: at least one transparent and rigid hollow cup-shapedshield having at least one open lower end and at least one closed upperend and at least one inner surface and at least one outer surface; atleast one conduit extending through said at least one outer surface andinto said at least one transparent and rigid hollow cup-shaped shield insaid at least one closed upper end, said at least one conduit having atleast one top end configured to accept at least one irrigation sourceand generally narrowing as extending downwardly through said at leastone inner surface to at least one bottom end; and at least one aperture,substantially adjacent said at least one conduit, extending through saidat least one closed upper end of said at least one transparent and rigidhollow cup-shaped shield.

FIG. 11 is a perspective view illustrating the use of the splash shield64 of FIG. 1 using a syringe 55 with connecting tubing 73 and an adapter74. FIG. 12 is a sectional view of the adapter 74 connection area of theembodiment of FIG. 11 illustrating the area detail. As shown, tubing 73fits over an upper male portion 125 of the adapter 74 while a lower maleportion 126 of the adapter 74 fits within the upper hollow 127 oforifice nozzle 58 (embodying herein wherein such adapter allowsconnection of such body to multiple varieties of such source ofirrigation fluid). Preferably, upper hollow 127 also allows connectionto an irrigation-source with a syringe tip (embodying herein whereinsuch irrigation-source connecter further comprises at least one adapterstructured and arranged to provide a connection to a syringe tip).

FIG. 13 is a sectional view of yet another preferred embodiment of asplash shield 64A according to the present invention, meshed with anirrigation squeeze bottle 59, illustrating details of preferredstructure. Preferably, splash shield 64A has a puncturer 65, as shown(embodying herein a body structured and arranged to assist in protectinga user from contact with irrigation fluid directed at a patient's wound;an irrigation-source connecter structured and arranged to connect suchbody, at a first end of such body, to a source of irrigation fluid;wherein such irrigation-source connecter comprises a puncturerstructured and arranged to puncture at least one barrier between suchbody and the source of irrigation fluid and further embodying whereinsuch puncturer comprises a spike). As splash shield 64A is meshed withbottle 59, bottle membrane 59A (which acts as a barrier to fluidescaping the bottle 59) is punctured by puncturer 65, which permitsfluid to exit from bottle 59. Below the threads 69 of splash shield 64Ais internal partition 81 sealing the open/bottom end of splash shield64A except for hole(s) 201. Preferably, puncturer 65 does not puncturebottle membrane 59A until after sufficient connection between the bottle59 and the splash shield 64A is made to provide a sufficient sealpreventing fluid from leaking from the meshed connection. Preferably,puncturer 65 punctures a bottle membrane 59A when the meshed connectionbetween splash shield 64A and bottle 59 is already engaged, but not yetfully and completely seated, preferably when the meshed connection isapproximately half-way complete. Thus, when bottle 59 is attached andsqueezed, fluid 56 is forced into and through hole(s) 201.

FIG. 14 is a sectional view of yet another preferred embodiment of asplash shield 64B according to the present invention, meshed with anirrigation squeeze bottle 59, illustrating details of preferredstructure. Preferably, splash shield 64B has a puncturer 65B. As splashshield 64B is meshed with bottle 59, bottle membrane 59A is punctured bypuncturer 65B, which permits fluid to exit from bottle 59. One or morefluid channel(s) 65C in puncturer 65B permits fluid 56 to exit frombottle 59 into orifice nozzle 58B (embodying herein wherein such spikecomprises at least one opening structured and arranged to transport theirrigation fluid from the source of irrigation fluid to such body).Below the threads 69 of splash shield 64B is internal partition 81sealing the open/bottom end of splash shield 64B except for orificenozzle 58B for directing a stream toward flesh 53. It is noted, that oneor more additional hole(s) 201 may be optionally found going throughpartition 81 in order to increase irrigation flow to a wound.Preferably, puncturer 65B does not puncture bottle membrane 59A untilafter sufficient connection between the bottle 59 and the splash shield64B is made to provide a sufficient seal preventing fluid from leakingfrom the meshed connection. Preferably, puncturer 65B punctures bottlemembrane 59A when the meshed connection between splash shield 64B andbottle 59 is already engaged, but not yet fully and completely seated,preferably when the meshed connection is approximately half-waycomplete. Thus, when bottle 59 is attached and squeezed, fluid 56 isforced through the fluid channel(s) 65C and through orifice nozzle 58(and also, optionally, through optional hole(s) 201), as shown.

FIG. 15 is a perspective view of another preferred embodiment of asplash shield 241 according to the present invention, which splashshield 241 is shown fitted into the neck 242 of a bottle 243 of the typecontaining irrigation fluid. FIG. 16 is a perspective view of the splashshield 241 of FIG. 15 shown detached from the illustrated bottle 243.FIG. 17 is a sectional view through the center of the splash shield 241of FIG. 15 showing structural details and showing its fit in theillustrated bottle 243 (which is in dotted lines). Splash shield 241 (asshown best in FIG. 17) is stepped from a larger-diameter cylindricalportion 244 to a smaller-diameter portion 245 that is sized withexternal taper to friction fit as shown within neck 242 of bottle 243(in dotted lines in FIG. 17). Thus, for example, squeezing of a squeezebottle 243 brings irrigation fluid into upper portion 245, from where itmay be forced through a hole 246 in dividing surface 247 to impinge uponskin portion 248 (see FIG. 15) with lower portion 244 acting to shieldsay, a user, from fluid or debris from a wound on skin portion 248. FIG.18 is a side view of a splash shield with an end cap 332 attached on thetop end and an end cap 332 detached from the bottom end of splash shield330. Preferably, end cap 332 assists in protecting internal sterility ofthe splash shield. End cap 332 also creates a closed pocket withinsplash shield, which can be used for example to store other items suchas wound treatment products and devices.

FIG. 19 is an exploded perspective view of yet another preferredembodiment of the splash shield 291 of the present invention, showingthe end 292 of an irrigation bottle 293, a bottle adapter 294 to controlthe irrigation stream, and a tubular splash shield element 295. FIG. 20is a sectional view of the splash shield 291 of FIG. 19 illustrating thedetails with the splash shield 291 connected to the bottle 293 (shown indotted lines). As shown, to use the splash shield 291, it is preferredto friction fit adapter 294 over the end 292 of bottle 293, and tofriction fit splash shield element 295 over the bottom of adapter 294.Then fluid from bottle 293 may be forced into adapter 294, through hole296, and into the tubular splash shield element areas for woundirrigation.

FIG. 21 is a perspective view of a preferred embodiment of a combinedsplash shield and irrigation squeeze tube 301 according to the presentinvention. FIG. 22 is a partial perspective view of the irrigationsqueeze tube 301 of FIG. 21, partially cut away to show its use with cap302 removed. Toothpaste-type squeeze tube portion 299 has a built-in ora removable transparent wound irrigation shield portion 303. An outlet304 to allow fluid egress or to allow attachment to a vacuum source (notshown) may be optionally provided for the advantages enumeratedpreviously. Cap 302 is made long enough for removal or attachment totube portion 299 with shield portion 303 in place. In operation, thetube portion 299 is squeezed, thus forcing irrigation fluid onto awound, as previously set forth generally. Having a removable shieldportion 303 is preferred if cap 302 is to be provided with nozzle 305adaptations or adaptors (as taught previously herein) that allowmodulation and that must be accessed easily in a sterile fashion,particularly if a simple, cheap, and easily available component such asa transparent plastic PVC tubing were used.

FIG. 23 is a front view illustrating yet another preferred embodiment ofa splash shield 271 according to the present invention, showing a spikeconnector 272 attached to a squeeze bag 273 and also fitted into acylindrical splash shield element 274. FIG. 24 is a perspective view ofthe splash shield 271 of FIG. 23, showing the spike connector 272separated from the cylindrical splash shield element 274. FIG. 25 is apartial sectional view showing the connection details with the spikeconnector 272 attached to the cylindrical splash shield element 274.Spike connector 272 is a component of the type commonly used in creatingan IV spike dripping chamber for modulating the administration of IVfluid through IV tubing, as shown (embodying herein wherein such spikecomprises an IV-spike connecter, unitary with such body). Splash shieldelement 274 may be made from standard PVC tubing to create an easilyproduced IV spike connector wound irrigation splash shield 271. By usingsimple available components in a new configuration and method, the toolinvestment would be minimized. It would also provide users with familiarequipment and parts that would reduce apprehension over using a newdevice. Providing this splash shield 271 permanently connected wouldprovide significant advantages in some situations as described above.There may be an optional outlet contour or aperture 275 (see FIG. 24)which can function as an exit opening for effluent irrigation fluid orfor the attachment of a vacuum connector. In addition, the tubingcomprising splash shield element 274 may be flexible to preventdiscomfort and trauma and to facilitate a better seal against the skin.When splash shield 271 is connected to bag 273, squeezed irrigationfluid 276 is forced through spike conduit 277 and through hole 278 individing surface 279, from where it enters attached splash shieldelement 274 for the described usages in wound irrigation.

FIG. 26 is an exploded perspective view of yet another preferredembodiment of the splash shield 281 of the present invention, showing asyringe-type tip 282, a syringe adapter 283 to control the irrigationstream, and a tubular splash shield component 284. FIG. 27 is asectional view of the splash shield 281 of FIG. 26 illustrating thedetails with the parts connected. This arrangement provides a separatetransparent shield component 284 which may be connected over a syringebody 285 to easily and quickly transform a standard syringe into ashield wound irrigation delivery device as shown in FIG. 27. One mightwant optionally to add adaptor 283 to the syringe tip 282 to modulatethe flow. Providing a removable wound irrigation splash shield component284 over the syringe body 285 would facilitate this by eliminating theneed to reach into a potentially narrow, tight fitting sterile space tomanipulate, position and exchange connectors.

FIG. 28 is a perspective view of yet another preferred embodiment of asplash shield 251 according to the present invention shown attached toan IV-type squeeze bag 252 by way of the IV spike connector 253 ofsplash shield 251. FIG. 29 is an enlarged (over FIG. 28) perspectiveview of the splash shield 251 of FIG. 28. FIG. 30 is sectional side viewof the splash shield 251 of FIG. 28 illustrating the structural detailsthereof. FIG. 31 is a bottom view of the splash shield 251 of FIG. 28.Wound irrigation splash shield 251 is preferably transparent andengineered to be sterilizable and disposable as is commonly done in themedical industry. IV spike connector 253 (resembling a commonlyavailable “IV spike”) is a male connector with an inner conduit 254 forfluid 255 and a tapered pointed end 256 fits into the outlet endconnector 257 of a fluid container such as a sterile IV solution bag 252as shown in FIG. 28. Optionally, if desired, there might be an outlet258 (dotted lines in FIG. 29) for the attachment to a vacuum source. Inoperation, fluid 255 is squeezed though conduit 254 of IV spikeconnector 253, from where it is forced through hole 259 of dividingsurface 260 to form an irrigation stream through shield portion 261(preferably shaped as shown, where, to better cover body wounds onappendages, as before mentioned, the preferred ratio of a maximum lengthof the open bottom end compared to a maximum width of such bottom end isat least 1.5:1.0) of wound irrigation splash shield 251. As shown, it ispreferred that one (bottom) edge of the shield portion 261 besubstantially linear so to provide a stable pivoting surface to promotea linearly directed irrigation stream. Also, one side 262 of shieldportion 261 may preferably be substantially planar so as to increase theuser's visibility of the irrigation process. Also, the irrigation streammay preferably be “off-center” to promote proximity to wall surfaces;that would allow better visualization. Also, it is preferred to providea ledge 263 as shown at the bottom of shield portion 261 for bettersealing against a skin portion when desired and for increasing theprotective area of the device without increasing the width of the splasharea required to form a seal.

FIG. 32 is a side elevation view of a preferred embodiment of themedical splash shield device 52 of the present invention. Preferably thedevice may be made of an inexpensive disposable transparentbiocompatible medical grade plastic such as a US FDA class VI PVC orpolycarbonate that may also be sterile to prevent wound infection. FIG.33 is a top plan view of the splash shield device 52 of FIG. 32. FIG. 34is a perspective view of the splash shield device 52 of FIG. 32 showingit in a restrained position, as on a portion of nearby equipment 19.FIG. 35 is a side sectional view of the splash shield device 52 of FIG.32, illustrating its operation. As shown, the medical splash shielddevice 52 of this preferred embodiment includes proximal outlet 14(embodying herein an output opening structured and arranged to allowsuctioning excess irrigation fluid from within such body; wherein suchoutput opening is structured and arranged to draw excess irrigationfluid from such splash portion toward a location approximately at aposition symmetrically opposed (with respect to such maximum heightdimension) from the location of such input opening), and a distalopening 17 for entry of the wound-washing fluid, shown as irrigationfluid 57. Preferably, distal opening 17 is located substantially lowerthan the maximum height dimension, as shown. The smooth rounded body 50has an opening, as shown, which is either rectangular with rounded endsor a similar long oval in shape (seen most clearly in FIG. 33). Most ofthe illustrated bottom opening is portion 67 in a flat plane; but thedistal end portion 51 of the bottom opening is in a plane coming upwardsfrom the plane of portion 67 at about an angle of 30 degrees, as shown.A clip restraint 23 is preferably located near the top of the body 50and protruding from the body 50 at about a parallel relationship to theprotrusion of outlet 14. As shown, the proximal end wall 70 of body 50is relatively vertical while the distal end wall 71 of body 50 risesvery gradually at no more than about 45 degrees from the horizontal. Theoutlet 14 is located near the bottom-opening portion 67 and near thebottom of substantially vertical proximal end wall 70. The distalopening 17 preferably functions as an inlet and is located approximatelycentrally on the distal end wall 71.

With reference to FIG. 35, the described preferred geometry permits thefollowing operation (as shown) of splash shield device 52. The problemsof prior art splash shield devices are overcome with the embodiment ofFIGS. 32-36. The flushing irrigation fluid 57, as from syringe 55,irrigates wound 54 with a flow that flushes the debris toward and intovacuum line 10 by way of inlet end 12. Note that the placement of inletend 12 near the flesh 53 portion of the splash shield device 52 assistsin an efficient unidirectional flush flow to efficiently clean the wound54 and remove debris and excess fluid (as shown). Preferably distalopening 17 is angled to assist in directing irrigation fluid at anoblique angle from vertical, so that a greater horizontal component offorce from the fluid is imparted to flush debris out of the wound(embodying herein wherein such input opening is structured and arrangedto assist in directing irrigation fluid at an oblique angle fromvertical). Also, the elongated bottom shape (in an appropriate size) ismore suited than a circular bottom shape for shielding and collectingflushing fluids on non-flat body parts such as arms, fingers, and feet.It is also noted that the relief afforded by the raised portion 51 ofthe shield bottom assists in providing more air flow (from an efficientdirection) as needed for good flushing. And, as illustrated by FIG. 36(a side sectional view of the embodiment of FIG. 32), the user may stillpress the splash shield device 52 toward the flesh 53 to operate theshield with relief closure as desired. This non-flat contour alsoassists in the pivoting of the device and the irrigation jet along thewound 54, changing the angle of the jet in relation to a position orlocation on the skin in a linear fashion.

FIG. 37 is a perspective view of a preferred alternate usage of thesplash shield device 52 of the type of FIG. 32, further illustratingsiphoning of irrigation fluid 57 from a fluid bottle 59 by way of tubing60. Vent opening 61 is preferably provided in container cap 80 forwell-known reasons.

FIG. 38 is a side sectional view of an alternate preferred embodiment ofthe splash shield device 52 of the present invention, illustrating itsoperation incorporating an inlet swivel structure permitting betterdirection of impingement of the saline or other irrigation fluid 57,even for impinging along a wound length direction (as for wound 54)(embodying herein wherein such input opening comprises: a swivelstructured and arranged to allow a user to direct a stream of irrigationfluid to selected portions of the skin of a patient; wherein such swivelcomprises an attacher structured and arranged to allow attachment of asource of irrigation fluid to such swivel). The details of the inletswivel structure are best shown in FIGS. 39-40. FIG. 39 is a partialexpanded sectional view of the embodiment of FIG. 38, illustratingswivel detail. FIG. 40 is an exploded perspective view furtherillustrating the swivel detail of the embodiment of FIG. 38. As shown,inlet swivel 62 containing distal opening 17 rides and may rotate inswivel socket 63, which socket is fixed in place by fixed attachmentwith the distal end wall 71 of splash shield device 52. When the tip 158of syringe 55 is inserted into distal opening 17, the orifice nozzle 58of inlet swivel 62 is enabled (see FIG. 39) to direct fluid 56 into thesplash shield as shown. The arrangements of FIGS. 32, 33, 34, 35, 36,37, 38, 39, and 40 embody herein a body structured and arranged tocontain irrigation fluid, wherein such body has a maximum heightdimension, and an input opening structured and arranged to allow theirrigation fluid into such body, wherein such input opening is locatedat a substantially lower position than such maximum height dimension;and further embody herein wherein a bottom peripheral circumference ofsuch body has an oval-like shape; and further embody herein wherein suchbody includes at least one bottom opening; wherein the ratio of amaximum length of such at least one bottom opening compared to a maximumwidth of such at least one bottom opening is at least 1.5:1.0.

FIG. 41 is a perspective view of yet another preferred embodiment of asplash shield 311 according to the present invention. Splash shield 311is shown with an inlet port 312 attached to an irrigation syringe 313and a vacuum connector port 314 attached to a vacuum line 315. FIG. 42is a side view of the splash shield 311 of FIG. 41, shown attached tothe irrigation syringe 313. FIG. 43 is a front view of the splash shield311 of FIG. 41, with the irrigation syringe 313 in dotted lines. FIG. 44is a side sectional view of the splash shield 311 of FIG. 41 showing thestructural details and fluid flow directions. FIG. 45 is a top view ofthe splash shield 311 of FIG. 41. FIG. 46 is a partial sectional viewthrough the section 46-46 of FIG. 42. FIG. 47 is a bottom view of thesplash shield 311 of FIG. 41.

The illustrated preferred embodiment of splash shield 311 has multipleinlet ports 312 and 312 a, with varying internal configurations so thatvarious different kinds of syringes or other fluid containers may beattached and variations in spray fineness may be had. Inlet ports 312and 312 a have male and female connection potential to allow formultiple user preferences with a single manually-operated splash shield311. Alternately to the inlet port configurations illustrated, suchports may in certain applications protrude into the splash shield 311 orbe located within the wall of the splash shield 311. Vacuum connectorport 314 is located adjacent base 318 of the splash shield 311 to assistin removal of fluid at the skin surface. As shown, a groove 319 at eachbottom side of splash shield 311 acts as a conduit for allowing air andirrigation fluid and debris to be transported to vacuum connector port314 when downward pressure against the skin is applied while there is avacuum pull. The grooves 319 form an incomplete seal on a contactsurface and widen the base of the splash shield 311, with the groove 319against the skin becoming an aperture through which such contaminatedfluid can be removed. Such groove(s) 319 are preferred to be locatednear the base of the splash shield 311 to prevent or minimize any visualobstruction caused by the vacuum apparatus features for an observerlooking from above (embodying herein an output nozzle structured andarranged to attach to a vacuum line; a conduit structured and arrangedto direct suction flow across such splash portion toward such outputnozzle; wherein such conduit comprises at least one channel along aperiphery of such body extending from such output nozzle to a locationapproximately at a position symmetrically opposed from the location ofsuch input opening).

The inlet ports 312 and 312 a are preferably made to extend in parallelfashion with the vacuum connector port 314 to simplify manufacturingtooling complexity and cost. It is noted that grooves 319 are preferablylocated adjacent the outer perimeter 321 of the splash shield 311, thusincreasing the total surface area of the splash shield 311 withoutcompromising the smaller area that can form an inner protective oroperational seal against the skin for wound irrigation protection,particularly for areas of small surface area or sharp contour. Forexample, over the sharp edge of the chin, one could form an adequateseal with the inner perimeter formed by the inner wall of the groove(s)319. The lateral outer edges of the grooves would increase the effectivesurface area protection beyond that formed within the inner seal. Thisdevice preferably has a longitudinally tapered base 318 or perimeter 321to facilitate attachment over the skin; and it preferably has a reliefport or contour 325 to facilitate the directional outflow of irrigationeffluent or to allow the inflow of gas to facilitate the vacuum ofirrigation fluid. It is noted that, if desired for certain uses, thevacuum connector port 314 may be eliminated; and the illustrated devicecan be operated with or without a vacuum source connected. It is notedthat the inlet on the illustrated device is off center, thus providing adesign that permits maximum pivoting ability while maintaining efficientshielding. It is also preferred to have flat side edges 318 a and 318 bof base 318 to maximize stability of the device when pivoted along theedge, as when one is irrigating along a linear laceration.

FIGS. 48 (a perspective view), 49 (a top view), and 50 (a sectional viewthrough the section 50-50 of FIG. 49) illustrate another preferredembodiment of a splash shield 52A having many common advantages,arrangements and functions with splash shield device 52, with a fewexceptions noted as follows. Bottom portion 67A preferably has a roundedperiphery, preferably generally oval or circular, as shown. As shown,extending from this periphery is an extension 67B, as shown, with whichto assist rocking of splash shield 52A to better direct the splashstream along the wound and also which performs a function of protectingthe fingers and hands of the user from irrigation fluid and wounddebris. As shown, bottom portion 67A also implements the “rocker”profile, having a non-planar bottom opening, and non-planar extension67B. Preferably bottom portion 67A and extension 67B are“saddle-shaped”, as shown (embodying herein a transparent bodystructured and arranged to assist in protecting a user from contact withirrigation fluid directed at a patient's wound; an irrigation-sourceconnecter structured and arranged to connect such body, at a first endof such body, to a source of irrigation fluid; wherein such transparentbody comprises at least one bottom opening wherein a bottom periphery ofsuch at least one bottom opening is substantially non-planar; andfurther embodying herein wherein such bottom peripheral circumference isstructured and arranged to allow rocking such body; and furtherembodying herein wherein such bottom peripheral circumference issaddle-shaped).

FIG. 51 shows a side view illustrating a wound irrigation systemaccording to a preferred embodiment of the present invention. Woundirrigation system 1100 preferably comprises wound irrigator 1101, asshown. Wound irrigator 1101 preferably shares many of the features ofthe aforementioned splash shields (see, e.g., splash shield 400).Preferably, wound irrigator 1101 connects to an irrigation fluid sourceand comprises shield 1120 and nozzle 1130, as shown. Wound irrigator1101 is preferably connectable to different types of irrigation fluidsources at first end 1882, as shown. When an irrigation fluid source,such as bottle 1240 (see FIG. 53), is unconnected to wound irrigator1101, second end 1882 is preferably open at second end 1882 to a hollowhaving a volume (such arrangement at least embodying herein at least onefirst irrigation source connector to connect such at least one body, atsuch at least one first end, to at least one squeezable wide mouthirrigation fluid bottle). Preferably, nozzle 1130 is surrounded byshield 1120 to advantageously prevent splashing of fluids onto a user ofwound irrigator 1101, as shown. Nozzle 1130 preferably extends intohollow area of shield 1120, as shown (at least embodying herein whereinsuch at least one at least one irrigation fluid port projects into suchat least one inner hollow). Shield 1120 is preferably open at its secondend 1884, as shown. Nozzle 1130 preferably tapers as it approaches theopen end of shield 1120, as shown. Wound irrigator 1101 also preferablycomprises dividing structure 1753 situated between first end 1182 andsecond end 1884, as shown. Preferably, dividing structure 1753 ispositioned closer to first end 1882 than to second end 1884, as shown.(Wound irrigator 1101 at least embodies herein an irrigation systemcomprising at least one body comprising at least one first end, at leastone second end, and at least one inner hollow having at least one firstvolume wherein such at least one second end is open to such at least oneinner hollow forming at least one shield).

In FIG. 51, wound irrigator 1101 is shown interconnected with syringe1160. Wound irrigator 1101 preferably comprises syringe tip receiver1210, as shown. Syringe tip receiver 1210 preferably comprises aprojection, preferably tubular shaped, to receive a syringe tip.(Syringe tip receiver 1210 at least embodies herein at least one secondirrigation source connector to connect such at least one body to atleast one syringe, such at least one second irrigation source connectorcomprising at least one tubular member projecting in a direction towardsuch at least one first end).

In a preferred embodiment, syringe tip receiver 1210 preferablycomprises a tapered interior portion (as shown) structured and arrangedto make a luer-type connection with a luer-type syringe. In such aluer-type connection arrangement, a preferred inner diameter for syringetip receiver 1210 would be about four millimeters, a preferred outerdiameter for syringe tip projection 1210 would be about fivemillimeters, with a preferred height of about 10 millimeters. Further,in such a luer-type connection arrangement, syringe tip receiver 1210preferably comprises a luer taper (preferably a six percent taper). Uponreading the teachings of this specification, those of ordinary skill inthe art will now understand that, under appropriate circumstances,considering issues such as irrigation fluid source, size of the targetto be irrigated, etc., other dimensions for syringe tip projection, suchas, for example, outer diameters greater than five millimeters (e.g.,six millimeter, 10 millimeters, etc.), outer diameters less than fivemillimeters (e.g., four millimeters, three millimeters, etc.), innerdiameters greater than or less than four millimeters, heights greaterthan or less than 10 millimeters (e.g., 15 millimeters, 8 millimeters, 5millimeters, 4 millimeters, etc.), etc., may suffice.

Syringe tip receiver 1210 preferably extends towards first end 1882,opposite the direction which nozzle 1130 extends, as shown. Preferably,syringe tip receiver 1210 is in fluid communication with nozzle 1130 sothat irrigation fluid from syringe 1160 (or bottle 1240) may bedelivered through nozzle 1130. (Nozzle 1130 at least embodies herein atleast one irrigation fluid port to dispense fluid from such at least onesqueezable wide mouth irrigation fluid bottle or such at least onesyringe). As shown in FIGS. 2, 7, and 9, wound irrigator 1101 may alsopreferably comprise apertures in dividing structure 1753.

Wound irrigator 1101 may also preferably comprise stepped tip portion1132, as shown. Stepped tip portion 1132 preferably permits attachmentof tubing (see FIG. 10) (or a syringe; see FIG. 9). Used in this way,irrigation fluid will be dispensed from syringe tip receiver 1210. Thewalls surrounding syringe tip receiver 1210 will function as a shield ina manner similar to shield 1120. Additionally preferably, an irrigationfluid source may be connected to nozzle 1130 (see FIG. 9).

In a preferred embodiment, wound irrigator 1101 preferably has anoverall height from first end 1882 to second end 1884 of about 60millimeters. Wound irrigator 1101 is preferably cylindrical with apreferred outer diameter of about 40 millimeters and a preferred innerdiameter of about 37 millimeters and a wall thickness of shield 1120 ofabout two millimeters. Shield 1120 (from dividing structure 1753 tosecond end 1884) preferably has a height of about 40 millimeters. Theremaining portion of wound irrigator 1101 (from dividing structure 1753to first end 1882) has a height of about 20 millimeters inches. Nozzle1130 is preferably tapered, as shown. Nozzle 1130 preferably comprises alength of about 20 millimeters. Nozzle 1130 preferably comprises adiameter of from about 1 mm to about 3 mm, preferably about 1.5 mm,alternately preferably about 2 mm, alternately preferably about 2.5 mm.Upon reading the teachings of this specification, those skilled in theart will now appreciate that, under appropriate circumstances,considering such issues as cost, available materials, futuretechnologies, etc., other dimensions, such as, for example, thicker orthinner walls, longer or shorter lengths, etc., may suffice.

Preferably, wound irrigator 1101 is a single monolithic piece.

In use, wound irrigator 1101 preferably irrigates a wound or an abscess(see, e.g., FIG. 54), preferably cleaning out infectious fluids to aidin healing. Fluid source (syringe 1160 or bottle 1240) pressurizes anirrigation fluid into wound irrigator 1101. Nozzle 1130 preferablydirects irrigation fluid from the attached fluid source toward a woundor abscess. When irrigation fluid contacts the wound or abscess (orsurrounding tissues), the irrigation fluid will deflect in multipledirections causing splashing of both the irrigation fluid and the bodyfluids being irrigated. Shield 1120 preferably blocks back-splash offluids during irrigation, preferably minimizing the spread of suchfluids. Upon reading the teachings of this specification, those ofordinary skill in the art will now understand that, under appropriatecircumstances, wound irrigator may be used, for example, to clean debrisfrom an ear.

To irrigate a wound using a syringe, syringe 1160 may be filled withirrigation fluid and then connected with syringe tip receiver 1210.Next, would irrigator is preferably positioned over the area to beirrigated or cleansed. Irrigation fluid within syringe 1160 may then bedelivered to a wound or abscess by simply using the syringe. Aspreviously noted, bottle 1240 may be used in irrigation.

FIG. 52 shows a side view of the wound irrigation system of FIG. 51illustrating multiple syringe-type connection. FIG. 53 shows a side viewof the wound irrigation system of FIG. 51, illustrating attachment to anirrigation fluid bottle.

Syringe tip receiver 1210 of wound irrigator 1101 is preferablyconnectable to multiple types of syringes as shown in FIG. 52.Preferably, syringe tip receiver 1210 connects with such multiple typesof syringes without leaking.

In one preferred embodiment, the interior of syringe tip receiver 1210comprises a luer taper, preferably a female, six percent taper. As shownin FIG. 52, syringe tip receiver 1210 connects with syringe 1163 havinga Luer-Lok connector and syringe 1166 having a Luer slip fit connector.Upon reading the teachings of this specification, those of ordinaryskill in the art will now understand that, under appropriatecircumstances, considering such issues as leakage prevention,then-available technology, etc., other types of syringe connectors toconnect with syringe tip receiver may suffice, such as, for example,catheter tip syringes.

In addition to connection with various syringe types, wound irrigator1101 is connectable with bottle 1240 as described more fully above (andas shown in FIG. 53). Depending on the wound to be irrigated or theirrigation fluid sources available, wound irrigator 1101 provides aconvenient, single device which is connectable to a variety ofirrigation fluid containers.

Wound irrigator 1101 preferably comprises plastic, preferably at leastone inexpensive disposable transparent biocompatible medical gradeplastic, preferably styrene or polycarbonate that is preferablysterilizable or preferably sterile. Wound irrigator 1101 preferably isclear/transparent, as shown, preferably for sighting of the irrigatedarea during irrigation. Upon reading the teachings of thisspecification, those skilled in the art will now appreciate that, underappropriate circumstances, considering such issues as cost, availablematerials, etc., other materials, such as, for example, Plexiglas,acrylics, nylons, other clear plastics, etc., may suffice.

Wound irrigator 1101 also may preferably comprise relief port 1140 toprevent undesired suction being applied to an irrigated wound orabscess, as shown. Relief port 1140 is preferably a “u-shaped” void inshield 1120 preferably located at the periphery of shield 1120,preferably at second end 1884, as shown. Wound irrigator 1101 preferablycomprises at least one relief port 1140, as shown. In one preferredembodiment, wound irrigator 1101 comprises at least two of relief port1140. When two of relief port 1140 are present in wound irrigator 1140,preferably the relief ports are positioned 90 degrees from one another.Upon reading the teachings of this specification, those of ordinaryskill in the art will now understand that, under appropriatecircumstances, considering such issues as shield diameter, size oftarget the target to be irrigated, etc., other numbers of relief portsand arrangements relative to other relief ports, etc., may suffice.

Relief port 1140 preferably allows pressure release from inside shield1120 and preferably permits run-off of irrigation fluid. Upon readingthe teachings of this specification, those skilled in the art will nowappreciate that, under appropriate circumstances, considering suchissues as cost, future technologies, etc., other relief ports, such as,for example, duck valves, high-on-wall breather ports, etc., maysuffice.

FIG. 54 shows a side view of a wound irrigation system, illustrating atleast one syringe needle aperture, according to an alternately preferredembodiment of the present invention. FIG. 55 shows a side view of thewound irrigation system of FIG. 54, illustrating syringe needle access.

Wound irrigation system 1100 alternately preferably comprises woundirrigator 1102, as shown. Wound irrigator 1102 is substantially similarto wound irrigator 1101. Wound irrigator 1102 comprises an elongatedrelief port or syringe needle aperture 1250. Syringe needle aperture1250 is “taller” compared with relief port 1140 shown in FIG. 51.Syringe needle aperture 1250 preferably allows access to a wound (suchas abscess 1260) with at least one syringe needle 1254, as shown in FIG.54, preferably allowing syringe 1252 to be used in the treatment ofabscess 1260. An abscess is a collection of pus that has accumulated ina cavity formed by the tissue typically in response to an infection.Abscess treatment typically involves incision and drainage. In theembodiment shown in FIGS. 54 and 55, a syringe needle may be manipulatedto puncture the abscess, deliver additional irrigation fluid, etc. Uponreading the teachings of this specification, those skilled in the artwill now appreciate that, under appropriate circumstances, consideringsuch issues as future applications, cost, future technologies, etc.,other instrument apertures, such as, for example, scalpel apertures,suction apertures, tweezers apertures, etc., may suffice.

Syringe needle aperture 1250 preferably comprises an opening in shieldwall 1125, as shown. Syringe needle aperture 1250 preferably is wideenough for syringe needle 1254, and preferably tall enough to allowcomfortable angling of syringe needle 1254 (and thereby syringe 1252)for use, as shown. Upon reading the teachings of this specification,those skilled in the art will now appreciate that, under appropriatecircumstances, considering such issues as cost, future technologies,etc., other dimensions and aperture placements, such as, for example,circular apertures, angled apertures, wider apertures, t-slot apertures,membrane covered apertures, etc., may suffice.

Preferably, wound irrigator 1102 may be used as a splatter shield wheninjecting target tissue with a needle. Preferably wound irrigator 1102is sterile so that any contact with a sterile needle

Wounds and abscess are commonly injected with numbing medication.Frequently, the injected medication builds pressure up under the skin orin an abscess. With the built up pressure, the injected medication(including blood or pus) may erupt or burst, shooting blood and pus awayfrom the area of injection which may make contact with a nearby person(and potentially come in contact with clothing or even an eye).Preferably, wound irrigator 1102 may be placed over an injection site(e.g., abscess 1260). Wound irrigator 1102 preferably being transparentpermits a person to view the target area and grip wound irrigator whileinserting syringe needle 1254 into needle aperture 1250 (see FIG. 54).When held in position, shield 1120 of wound irrigator 1102 preferablyblocks the potential splatter of contents from the injected site.Further, wound irrigator 1102 advantageously prevents the needle handlerfrom receiving inadvertent needle sticks as the syringe needle 1254 isvirtually surrounded by splash shield 1120 when inserted into needleaperture 1250 (at least embodying herein wherein such at least oneshield further comprises at least one void having a height substantiallygreater than its width and also at least embodying herein wherein suchat least one shield further comprises at least one void sized to permitinsertion and manipulation of a syringe needle). Preferably, woundirrigator 1102 is sterile so needle contact with the walls of needleaperture 1250 or wound irrigator 1102 will not contaminate the needle.Preferably, when in use, wound irrigator 1102 may be gripped securelyfrom above. This method may also be performed with splash shield 400.Using splash shield 400, the shield is placed over a target area and asyringe needle is directed through the skin to the target. Upon readingthe teachings of this specification, those of ordinary skill in the artwill now understand that, under appropriate circumstances, consideringissues such as device dimensions, intended use, etc., other splattershield arrangements, such as cylindrical bodies with an open and aclosed end with or without a syringe needle insertion aperture maysuffice. The above description at least embodies herein a methodrelating to preventing spraying or splatter of fluid from an injectionsite comprising the steps of: placing at least one shield having atleast one open end and at least one inner hollow over at least oneportion of tissue to be injected; injecting such at least one portion oftissue to be injected; and shielding a user from any spraying orsplattering resulting from the injection using such at least one shield.Additionally, the above description at least embodies herein such amethod wherein such at least one shield comprises at least one aperturesuitable to insert and manipulate at least one injecting device (e.g., asyringe).

FIG. 56 shows a side view of wound irrigation system 1100, illustratingnozzle extension 1300, according to an alternately preferred embodimentof the present invention. FIG. 57 shows a side view of wound irrigationsystem 1100 of FIG. 56, illustrating use of nozzle extension 1300. Woundirrigation system 1100 alternately preferably comprises abscessirrigator 1103, as shown. Abscess irrigator 1103 preferably comprisesmany of the elements of wound irrigator 1101, as shown. Abscessirrigator 1103 preferably further comprises nozzle extension 1300, asshown. Nozzle extension 1300 preferably comprises at least one nozzleconnector 1310 and preferably at least one extended tip 1320, as shown.Nozzle connector 1310 preferably connects to irrigation nozzle 1130,preferably in a friction-fit, as shown. Extended tip 1320 preferablyextends beyond splash shield 1120, as shown in FIG. 58. Preferably,nozzle extension 1300 preferably extends beyond shield 1120 a distanceof about % inch to about three inches. For most uses, nozzle extension1300 preferably extends beyond shield 1120 a distance of about ½ inch.Upon reading the teachings of this specification, those of ordinaryskill in the art will now understand that, under appropriatecircumstances, considering issues such as depth of target irrigationsource, size of irrigation fluid container, etc., other dimensions ofnozzle extension extending beyond shield, such as, for example, greaterthan three inches, ⅛ inch, 5 inches, etc., may suffice.

In use, abscess irrigator 1103 is used to probe and irrigate at leastone abscess cavity 1330, as shown in FIG. 57. Extended tip 1320 maypreferably be used to enter abscess cavity 1330, as shown in FIG. 57,preferably directing irrigation fluids within abscess cavity 1330.Extended tip 1320 preferably is flexible, as shown in FIG. 57.Flexibility of extended tip 1320 preferably prevents further injury tosurrounding tissues.

FIG. 58 shows a side view of wound irrigation system 1100 of FIG. 56,illustrating attachment of nozzle extension 1300. FIG. 59 shows a sideview of the abscess irrigation system of FIG. 58, illustrating lengthadjustment of the at least one nozzle extension. Nozzle extension 1300preferably comprises plastic, preferably PVC plastic. Upon reading theteachings of this specification, those skilled in the art will nowappreciate that, under appropriate circumstances, considering suchissues as cost, available materials, etc., other materials, such as, forexample, polyethylene, nylon, urethanes, polypropylene, etc., maysuffice.

Nozzle extension 1300 (at least embodying herein at least one removableextension nozzle which, when attached to such at least one irrigationfluid port, extends beyond such at least one second end) preferablycomprises at least one tapered tube, as shown. As shown in FIG. 59,extension tip 1320 preferably may be shortened, as shown, preferably bycutting, preferably to allow more versatility in use. Upon reading theteachings of this specification, those skilled in the art will nowappreciate that, under appropriate circumstances, considering suchissues as cost, available materials, etc., other nozzle extensiongeometries, such as, for example, cylindrical, stepped, etc., maysuffice.

FIG. 60 shows a side view of abscess irrigation system, illustrating aninsert nozzle (removable nozzle 1352), according to an alternatelypreferred embodiment of the present invention. FIG. 61 shows a side viewof the abscess irrigation system of FIG. 60, illustrating attachment ofat least one syringe to removable nozzle 1352. Wound irrigation system1100 alternately preferably comprises abscess irrigator 1104, as shown.Abscess irrigator 1104 preferably comprises many of the elements ofabscess irrigator 1101, as shown. However, instead of irrigation nozzle1130, abscess irrigator 1104 preferably comprises removable nozzle 1352,as shown. Removable nozzle 1352 preferably comprises plastic, preferablyPVC plastic. Upon reading the teachings of this specification, thoseskilled in the art will now appreciate that, under appropriatecircumstances, considering such issues as cost, available materials,etc., other materials, such as, for example, polyethylene, nylon,urethanes, polypropylene, etc., may suffice.

Removable nozzle 1352 preferably comprises syringe tip receiver 1370sized to receive a syringe without leaking. Preferably, syringe tipreceiver 1370 may receive multiple types of syringe tips (see FIGS. 51and 52 and related discussion). In one preferred embodiment, theinterior of syringe tip receiver 1370 preferably comprises a luer taper,preferably a female, six percent taper. Preferably, syringe tip receiver1370 interconnects with syringes having Luer-Lok connectors, Luer slipfit connectors, etc. Removable nozzle 1352 also preferably comprises atleast one nozzle 1350, as shown. Abscess irrigator 1104 (at leastembodying herein an irrigation system comprising: at least one bodycomprising at least one first end, at least one second end, and at leastone inner hollow having at least one first volume wherein such at leastone second end is open to such at least one inner hollow forming atleast one shield) preferably comprises at least one nozzle aperture 1360(an aperture in dividing structure 1753), as shown. Nozzle aperture 1360is preferably present in dividing structure 1754 (at least embodyingherein wherein such at least one dividing structure comprises at leastone aperture) which separates second end 1884 from first end 1882 ofwound irrigator 1104, as shown. Preferably, dividing structure 1754 ispositioned closer to first end 1882 than to second end 1884, as shown(such arrangement at least embodying herein wherein such at least onedividing structure is positioned closer to such at least one second endthan to such at least one first end). Removable nozzle 1352 (at leastembodying herein at least one aperture-insertable member comprising atleast one nozzle portion) preferably inserts into nozzle aperture 1360up to a point where syringe tip receiver 1370 begins, as shown in FIG.61. Removable nozzle 1352 preferably comprises larger-than-apertureportion 1379 (at least embodying herein at least onelarger-than-aperture portion to secure such at least oneaperture-insertable member in such at least one aperture) to secureremovable nozzle 1352 in nozzle aperture 1360, as shown. Syringe tipreceiver 1370 preferably connects with syringe 1160, as shown in FIG. 61(see also FIG. 51). Removable nozzle 1352 preferably friction fits withaperture wall 1365, when inserted, as shown in FIG. 61. Upon reading theteachings of this specification, those skilled in the art will nowappreciate that, under appropriate circumstances, considering suchissues as cost, future technologies, etc., other removable nozzles, suchas, for example, twist lock nozzles, two-piece nozzles, etc., maysuffice.

Nozzle 1350 preferably comprises, as shown, at least one intra-shieldnozzle 1375, alternately preferably at least one extra-shield nozzle1380. Intra-shield nozzle 1375 preferably comprises a length shorterthan splash shield 1120, as shown, preferably to keep nozzle 1350 insideshield wall 1125, when inserted, as shown in FIG. 61 (such arrangementat least embodying herein wherein, when such at least one at least oneaperture-insertable member is inserted into such at least one aperture,such at least one nozzle portion projects into such at least one innerhollow). Extra-shield nozzle 1380 (at least embodying herein whereinsuch at least one nozzle portion, when such at least oneaperture-insertable member is inserted into such at least one aperture,extends beyond such at least one second end) preferably comprises alength longer than splash shield 1120, preferably protruding from splashshield 1120, when inserted.

FIG. 62 shows a side view of an irrigation system, illustrating at leastone detachable shield, according to an alternately preferred embodimentof the present invention. Wound irrigation system 1100 alternatelypreferably comprises abscess irrigator 1105, as shown. While abscessirrigator 1105 comprises many elements of abscess irrigator 1101,instead of splash shield 1120 integral to abscess irrigator 1101,abscess irrigator 1105 preferably comprises removable splash shield1420, as shown. Abscess irrigator 1105 preferably comprises at least onefluid source connector 1410 and at least one removable splash shield1420, as shown.

While fluid source connector 1410 comprises many elements of fluidsource connector 1110, fluid source connector 1410 preferably furthercomprises at least one shield connector 1430. Shield connector 1430preferably allows attachment of removable splash shield 1420 to fluidsource connector 1410, as shown. Removable splash shield 1420 preferablyfriction fits to fluid source connector 1410. Removable splash shield1420 preferably comprises shield wall 1125, as shown. Removable splashshield 1420 preferably comprises at least one cylindrical tube. Whenremovable splash shield 1420 is attached, irrigation nozzle 1130preferably extends into removable splash shield 1420. Upon reading theteachings of this specification, those skilled in the art will nowappreciate that, under appropriate circumstances, considering suchissues as cost, future applications, etc., other removable splash shieldgeometries, such as, for example, conic, planar, concave, etc., maysuffice.

FIG. 63 shows a side view of an irrigation system, illustrating at leastone adjustable-height shield, according to an alternately preferredembodiment of the present invention. Wound irrigation system 1100alternately preferably comprises abscess irrigator 1106, as shown. Whileabscess irrigator 1106 comprises many elements of abscess irrigator1105, instead of shield connector 1430, abscess irrigator 1106preferably comprises adjustable shield connector 1435, as shown.Adjustable shield connector 1435, via more surface area contact whencompared with shield connector 1430 (at least embodying herein whereinsuch at least one shield connector is sized to permit position selectionof such at least one shield) preferably allows removable shield 1420 toadjust in height. Removable shield 1420 preferably comprises at leastone abbreviated shield 1424, alternately preferably at least oneextended shield 1426, as shown. When using either abbreviated shield1424 or extended shield 1426, irrigation nozzle 1130 preferably extendsinto each respective shield. Abbreviated shield 1424 preferably allowsprotrusion of irrigation nozzle 1130, when fully shortened on adjustableshield connector 1435. Extended shield 1426 preferably extends pastirrigation nozzle 1130, when attached to adjustable shield connector1435. Upon reading the teachings of this specification, those skilled inthe art will now appreciate that, under appropriate circumstances,considering such issues as cost, future technologies, etc., otheradjustable length splash shields, such as, for example, telescopicsplash shields, flexible splash shields, etc., may suffice.

FIG. 64 shows a side view of an irrigation system, illustrating at leastone multiple-type connector, according to an alternately preferredembodiment of the present invention. FIG. 65 shows a bottom view of theirrigation system of FIG. 64. FIG. 66 shows the sectional view 66-66 ofFIG. 65. FIG. 67 shows a side view of the irrigation system of FIG. 66,illustrating attachment to at least one fluid bottle.

Wound irrigation system 1100 alternately preferably comprises irrigator1107, as shown. Irrigator 1107 preferably comprises syringe connector1510 and threaded connector 1525, as shown. Syringe connector 1510preferably accepts connections, as shown in FIG. 64, from syringe 1160(irrigation fluid sources 1165) preferably comprising, as shown, eitherslip-fit-type luer connector 1230, or alternately preferably comprisinga luer-lock connector 1235. Upon reading the teachings of thisspecification, those of ordinary skill in the art will now understandthat, under appropriate circumstances, considering such issues as thetarget of irrigation, irrigation fluid source container size, etc.,other types of syringes may engage syringe connectors, such as, forexample, catheter tip syringes, etc.

Additionally, threaded connector 1525 preferably allows connection to atleast one fluid bottle 1240 (which may be wide mouth irrigation squeezebottle 59), preferably comprising at least one threaded neck 1245, asshown in FIG. 67.

Further, irrigator 1107 preferably comprises at least one splash shield1540, as shown in FIG. 65 and FIG. 66. Splash shield 1540 preferablyfunctions similarly to splash shield 1120, preferably preventingback-splash of fluids during irrigation. Splash shield 1540 preferablycomprises a concave dish, as shown. A preferred range for the depth ofsplash shield 1540 is about ¼ inch to about 1½ inches. Upon reading theteachings of this specification, those of ordinary skill in the art willnow understand that, under appropriate circumstances, considering issuessuch as desired ejecting pressure of fluid, area to be irrigated, sizeof irrigation fluid container, etc., other depths of splash shield, suchas greater than 1½ inches (e.g., two inches, five inches, etc.) or lessthan % inch (e.g., ⅛ inch, etc.), etc., may suffice.

Also upon reading the teachings of this specification, those skilled inthe art will now appreciate that, under appropriate circumstances,considering such issues as cost, future technologies, etc., other splashshields, such as, for example, circular plates, extended concave dishes,etc., may suffice.

Irrigator 1107 preferably comprises nozzle 1530, as shown. Syringeconnector 1510 is preferably in fluid communication with nozzle 1530 sothat irrigation fluid from either a syringe attached at syringeconnector 1510 or bottle 1240 (irrigation source 1165) will flow fromthe irrigation fluid source through nozzle 1530 to the intended target.Nozzle 1530 preferably extends beyond splash shield 1540, as shown. Suchan extended nozzle is preferably used to irrigate abscesses (see, e.g.,FIG. 57).

FIG. 68 shows a perspective view of an abscess irrigator (abscessirrigator 1108) according to an alternately preferred embodiment of thepresent invention. FIG. 69 shows a bottom view of the abscess irrigationsystem of FIG. 68. Wound irrigation system 1100 alternately preferablycomprises at least one abscess irrigator 1108, as shown. Abscessirrigator 1108 preferably comprises at least one syringe connector 1610,at least one irrigation nozzle 1630, and at least one splash shield1640, as shown. Splash shield 1640 preferably comprises at least onethickened wall portion at the rim of the open end of splash shield 1640,as shown. Such thickened wall portion preferably assists in gripping andhandling abscess irrigator 1108.

Preferably syringe connector 1610 is structured and arranged to be influid communication with irrigation nozzle 1630 so that fluid from anirrigation fluid source (e.g., a syringe) connected at syringe connector1610 may flow through irrigation nozzle 1630 and be delivered at thedesired target. In another preferred embodiment, tubing may bepreferably connected with syringe connector 1610 (see, e.g., FIG. 11).

Splash shield 1640 preferably comprises at least one concave dishstructure or a dome-shaped configuration open at one end, as shown,preferably comprising a diameter of about 40 millimeters, and preferablycomprising a depth of about 1½ centimeters. Splash shield 1640preferably comprises at least one inner surface and at least one outersurface. A preferred range for the depth of splash shield 1640 is about¼ inch to about 1½ inches. Upon reading the teachings of thisspecification, those of ordinary skill in the art will now understandthat, under appropriate circumstances, considering issues such asirrigation target, irrigation source size, amount of fluid desired to bedelivered, etc. diameters of splash shield other than 40 millimeters(such as 50 millimeters, greater than 50 millimeters, 45 millimeters,less than 45 millimeters, etc.) and depths other than 1½ centimeters(such as 30 millimeters, greater than 15 millimeters, 1 centimeter, fourcentimeters, five centimeters, etc.), may suffice. Also, upon readingthe teachings of this specification, those of ordinary skill in the artwill now understand that, under appropriate circumstances, consideringsuch issues as irrigation target, irrigation source size, amount offluid desired to be delivered, material used, cost, etc., other splashshield shapes, such as, for example, shallower cylindrical dish shields,planer shields, conical shields, etc., may suffice.

Splash shield 1640 preferably is transparent, as shown. The transparencypermits a user to view the target being irrigated through the device.Splash shield 1640 preferably comprises plastic, preferably at least oneinexpensive disposable transparent biocompatible medical grade plastic,preferably a styrene or polycarbonate that may also be sterile toprevent wound infection. Upon reading the teachings of thisspecification, those skilled in the alt will now appreciate that, underappropriate circumstances, considering such issues as availablematerials, cost, etc., other materials, such as, for example, Plexiglas,acrylics, nylons, other clear plastics, etc., may suffice.

FIG. 70 shows a side view of the abscess irrigation system of FIG. 68.Irrigation nozzle 1630 preferably is surrounded by and extends beyondsplash shield 1640, as shown, preferably a distance E, preferably about1½ centimeters (such arrangement at least embodying herein such at leastone shield surrounding such at least one fluid output port and whereinsuch at least one fluid output port extends beyond such at least oneopen end of such at least one shield). Upon reading the teachings ofthis specification, those of ordinary skill in the art will nowunderstand that, under appropriate circumstances, considering issuessuch as target to be irrigate, size of the connected irrigation source,etc., irrigation nozzle may extend beyond splash shield other lengths,such as, for example, 18 millimeters, 30 millimeters, one inch, greaterthan 30 millimeters, greater than one inch, etc.

Irrigation nozzle 1630 preferably comprises rigid plastic, preferably atleast one inexpensive disposable transparent biocompatible medical gradeplastic, preferably a styrene or polycarbonate that may also be sterileto prevent wound infection. Upon reading the teachings of thisspecification, those skilled in the art will now appreciate that, underappropriate circumstances, considering such issues as cost, availablematerials, etc., other materials, such as, for example, polyethylene,nylon, urethanes, polypropylene, etc., may suffice.

FIG. 71 shows a side view of the abscess irrigation system of FIG. 70,illustrating flexible nozzle extension 1650. In a preferred embodiment,irrigation nozzle 1630 preferably comprises flexible nozzle extension1650, as shown. (It is noted that in another preferred embodimentflexible nozzle extension 1650 is preferably not included in abscessirrigator 1108.) Flexible nozzle extension 1650 preferably slides in andout of irrigation nozzle 1630 adjusting the effective length ofirrigation nozzle 1630, as shown, during use. Flexible nozzle extension1650 is preferably held in position within irrigation nozzle 1630 with afriction fit. The aforementioned friction fit holds flexible nozzleextension 1650 in position within irrigation nozzle 1630. Flexiblenozzle extension 1650 preferably comprises flexible plastic, preferablyPVC plastic.

FIG. 72 shows a side view of the abscess irrigation system of FIG. 71,illustrating use with abscess cavity 1330. Syringe connector 1610preferably allows attachment to syringe 1160, as shown, to be used as anirrigation fluid source. In use, irrigation nozzle 1630 preferably maybe inserted into abscess cavity 1330, as shown, to clean abscess cavity1330 of infectious fluids. Splash shield 1640 preferably preventsexcessive back-splash of irrigation fluids and infectious fluids, whileallowing sighting of abscess area. For additional length in probing andirrigating abscess, flexible nozzle extension 1650 may be extended fromirrigation nozzle 1630 (see, e.g., FIG. 38). A flexible extension nozzleis preferred so that trauma will not be increased when irrigating anabscess (which typically needs to be incised to let the abscess contentsdrain).

FIG. 73 shows a side view, illustrating an alternately preferredluer-lock connector, according to the preferred embodiment of FIG. 72.Syringe connector 1610 alternately preferably further comprises at leastone locking ridge 1615, as shown. Locking ridge 1615 preferably engageswith twist-lock-type luer-locking connectors, such as is shown insyringe 1163 of FIG. 52, preferably to lock connection with syringeconnector 1610. Upon reading the teachings of this specification, thoseskilled in the art will now appreciate that, under appropriatecircumstances, considering such issues as cost, available fluid sources,etc., other locking mechanisms, such as, for example, bayonet locks,snap locks, etc., may suffice.

Upon reading the teachings of this specification, those of ordinaryskill in the art will now understand that, under appropriatecircumstances, considering such issues as intended target, size ofintended target, type of stream to be directed at target, other uses ofabscess irrigator, such as, use to irrigate an ear to remove debris froman ear, use with a wound, etc., may suffice.

Although applicant has described applicant's preferred embodiments ofthis invention, it will be understood that the broadest scope of thisinvention includes modifications such as diverse shapes, sizes, andmaterials. Such scope is limited only by the below claims as read inconnection with the above specification. Further, many other advantagesof applicant's invention will be apparent to those skilled in the artfrom the above descriptions and the below claims.

What is claimed is:
 1. An irrigator system for delivering a volume offluid from a fluid source to an abscess or wound, the irrigator systemcomprising: a fluid source connector for removably connecting to thefluid source; a fluid receiver for receiving the fluid from the fluidsource; a fluid delivery nozzle for delivering a targeted stream of thefluid to the abscess or wound, wherein the fluid source connector andthe fluid delivery nozzle comprise a single monolithic structure,wherein the fluid delivery nozzle extends away from the fluid receiverto a distal tip; and a shield removably positioned around and withrespect to the fluid delivery nozzle to protect the fluid deliverynozzle, wherein the shield consists of a wall that extends between aconnection end and an open free end and wherein the fluid deliverynozzle is adapted to deliver the targeted stream of fluid directly outof the shield wall open free end; wherein the shield wall connection enddefines a first clearance area and the shield wall open free end definesa second clearance area, wherein the first clearance area is not smallerthan the second clearance area.
 2. The irrigator system of claim 1,wherein the fluid delivery nozzle consists of a circular port.